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Mid 2010 Modell A1278 / 2,4 oder 2,66 GHz Core 2 Duo Prozessor

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My friends volume isn't working


my friends volume isn't working /speaker isn't working

does anyone have any idea what the issue could be

any answers are greatly appreciated

thanks :)

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Gewählte Lösung

Here are a couple things to try/rule out.

-Turn the volume all the way up

-Try sound from multiple sources (YouTube, iTunes, Safari)

-Classic, turn it off and back on

-Make sure no external devices are connected and try sound again

-Update your version of macOS

-Restart the sound controller

-Open Activity Monitor-->fine coreaudiod--> select it and click the X to end the process--> Try sound again

-Check System Preferences

-Open System Preferences -->click Sound--> Click Output tab-->Click on Internal Speakers-->Make sure 'Mute' isn't selected and make sure the slider is moved to the right.

Hope this helps.


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Thanks Warren

We changed some settings and tried safe mode and all is good for now

Thanks for all the help! :)


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HelloMacOS wird auf ewig dankbar sein.

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